Both cooking methods cause the protein to unfold. Now that you know more chemistry, explain why...

Both cooking methods cause the protein to unfold. Now that you know more chemistry, explain why heat or acid causes the protein to unfold? What is happening chemically?

Expert Solution

Protein folding is key to do its job correctly. It must be folded into the right shape to function. Hydrogen bonds, which play a big part in folding, are rather weak, and it doesn't take much heat, acidity, or other stress to break some and form others, denaturing the protein.

Proteins have both acidic parts and basic parts, the acidity of the solution they are in changes their behavior. Acids release protons (hydrogen nuclei) and bases accept protons. In an acidic solution, the basic parts of the protein accept protons from the acidic solution and become positively charged. The positive charges repel one another, and the protein molecules are less likely to combine with one another.

In a basic solution, the acidic parts of the protein lose a proton, and become negatively charged. This also results in repulsion between the protein molecules, and combination is reduced.

queen_honey_blossom answered 2 years ago

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